html,body,h1,h2,h3,h4,h5,h6,ul,li,input,iframe,figure,figcaption,p{
    margin: 0;
    padding: 0;
}
html{
    font-size: 16px;
    font-family: "微软雅黑";
}
li{
    list-style: none;
}
h1,h2,h3,h4,h5,h6{
    font-weight: normal;
}
b,strong{
    font-weight: normal;
}
i,em{
    font-style: normal;
}
a{
    text-decoration: none;
}
.clear-fix::after{
    content:" ";
    clear:both;
    height:0;
    width:100%;
    overflow:hidden;
    display:block;
    visibility:hidden
   }